Music-leaf turner.



E. A. LEW!S & P. R. PINKARD.

MUSiC LEAF TURNER.

APPLICATION FILED SEPT. 1. 191a.

1,24%349. Patented Oct. 30, 1917.

UNITED STATES" PATENT OFFICE.

EDGABw-Aa LEWIS'AND PAUL-Rs PINKARD, T1" ROSW'ELL, NEW IVIEXICO; SAID PINKARD ASSIGNOR' OF-FOUR-TENTHS 0F THE NI-IDLE RIGHT TO SAID LEWIS.

MUSICHLEAF TURNER.

Application filed September 11, 1916.

T0 all whom it may concern:

it. known that we, EDGAR A. Lnwrs and PAUL Rf; PI1IKARD,'bOtl1 citizens of the United States, residing at Roswelh'in the county'of Chavesand State of New Mexico, have inventedordiscovered certain new and useful Improvements in Music-Leaf "Turners, of vhiclrthe following is a specification, refer ence being had therein to the accompanying drawings:

This invention relates to leaf-tnrners for turningthe leaves of books or sheetmusic, and has for its object the provision of a simple, compact, efficient, convenient, and *generally improved. device ofthis character so constructed and arranged as either to be readily portable or to be capable of being builtinto a bookor'music rest as a permanent part thereof, and when in place to serve as a support for the bookcr music, said de-- vice being capable of operation to turn the leaves successively in eitherdirection by-the successive operations of one of a single pair of operating devices or members.

The'foregoing and other objects ofthe invention, together with means whereby the same may be carried into efi'ect,will best be understood from the following description of one form or embodiment thereof illus- 3O trated in the accompanying drawings, in

which'-' Figure 1.'is a perspective view of a book or music rest or rack, showing the leaf turner in position thereon, and illustrating the operation of the device.

Fig. 2 is a plan view with'the cover of the casing removed; I

Fig. 3 is a section on the line 33, Fig. 2.

Fig. 4 is a. detail elevation, and

Fig. 5 a bottom plan view of the rotatable actuator.

Fig. 6 is an enlarged detail elevation of one of the leaf turning members :or arms and its associated pinion.

notes a book or music rest which-may be of any usual or well known form,-either in the nature of a separate reading desk ,or music stand, or of the usual rack forming a part of a piano, organ and the like. 16,'Fig. 1, denotes the leaf turning device as a whole, whichv device maybeeither of a separate, portable character, orpbuilt in as an integral or permanent part of the book or music rest 15. The mechanism of the. device 16 is in closed within. 'a casing which" is relatively Specification of Letters Patent.

Referring particularly to Fig. .1, 15 de-- Patented Oct. 30,. 191 7.

Serial No. 119,467.

flat in form, rendering the device readily portable when constructed separate from the music'sta'nd, thereby enabling the same to be carried about and used in connection with any music rest,-or, when built in as a permanent part of saidbook or music rest, occupying very little additional space and being not unsightlyin appearance, said device serving, as will be seen, as a support for the book or music 17, which rests upon the top thereof.

The casing aforesaid comprisesa preferably rectangular body-18 and a cover 19, preferably detachably secured to said body, as by screws 20 The upper edge of the casing body 18-and the lower edge of the cover 19 are cut away the front to'provide a slot21'through' which operate or swing the leaf turning members or arms 22, which may be ofany suitable number. Said arms or members 22 are provided at their outer ends with leaf-engaging portions 23 which ex tend above the casing in a position to engage the lower edges of the leaves of a book or sheet music 17, the cover--19 being cut out at suitable points at the top, as at 2 f to proide' openings through which the leaf-engaging members or portions 23 extend. AS herein shown each of the members 23 comprises a pair of resilient arms adapted to receive between them the edge of a leaf.

Connected toor formed integral with each of the arms 22, the series being rotatably mounted in cosecured to the bottom of the casing body 18. 26 denotes a second stud shaft, also supported in. the casing body 18, and arranged with its axis parallel to the axis of the shaft 25.

the several gear segments 29 with their re spective plnions 24., the actuator 1s held against longitudinal movement on the shaft 26, as by means of a spring '30 surrounding said shaft, and hearing at its upper end against the cover 19 and at its lower end is a pinion 24, the pinions of 90 axial Feb- 610111113011 an'upright stud shaft 25 against the gear member 28, whereby said actuator is held in its lowermost position upon said shaft. The disk 27 is provided on its lower side with a series of lugs or studs 31 corresponding in number and circumferential arrangement to the gear segments 29.

and 320 denote operating members for intermittently rotating the actuator. These operating members being substantially similar in construction, only one will be described in detail. The member comprises a lever pivoted at 33 to the bottom of the casing body 18. The lever 32 is normally held in the retracted position shown in Fig. 2 by means of a spring 34, and the forward movement thereof is limited by a stop lug To further control, guide and limit the mo vements of the lever there may, if desired, be provided a keeper 36.

Pivoted at 37 to the free end of the lever 32 is a dog 38 normally held by a spring 39 against a stop lug 40, The construction is such that, as the lever 82 is swung forwardly against the tension of the spring 34, the dog 38 will engage one of the lugs 31 on the disk 27 and turn the actuator through an arc corresponding to the length of one of the gear segments 29. As the lever 32 returns to normal position under the influence of the spring 34:, the dog 38 is permitted to turn upon its pivot 37 against the tension of the spring 39, and thereby pass the following lug 81 without turning the actuator back from the position to which it has been advanced by the forward movement of the lever. In this manner successive oscillations of the operating lever cause the actuator to be intermittently rotated, the amount of each rotation or step being substantially equal to the'circumferential spacing of the gear segments 29. The direction in which the actuator is thus rotated will depend upon which of the levers 32 or 320 is operated.

For'operating or oscillating the levers or operating members as above explained, there are provided operating rods 41 and 410 pivotally connected at their inner ends to the levers 32 and 320 respectively, and extending through suitably disposed openings in the front wall of the casing so as to be operable from the exterior thereof. The rods 41 and 410, particularly when the device forms a permanent part of a book or music rest, may be operatively connected by any suitable or well-known means (not shown) to any suitable actuating members, such as foot pedals or knee levers. As illustrative of means for operating these rods, said rods are herein shown as provided with push buttons 42 and 420, this arrangement being especially suitable for a portable device.

The complete operation is as follows:

The book or music 17 having been laced upon the rack 15 and resting upon tl ie top of the casing of the leaf turning device 16, the iespective leaves to be turned are engaged with the leaf engaging members 23 of the several arms For turning the leaves from right to left in the usual succession the push button 12 is operated, and at the beginning of the operation all of the arms 22 which are connected with the leaves are swung into the right hand position. Thereafter, at each operation of the push button 42, and consequent oscillation of the lever 32, the actuator will be turned through an arc corresponding to the spacing of the gear segments 29. As herein shown this are is substantially 90, there being shown four each of the arms 22, pinions 24, gear segments 29, and lugs 31. At each turning movement of the actuator one of the gear segments 29 will engage and rotate its corresponding pinion 24, causing the arm 22 connected therewith to be swung from the right to the left hand position, carrying with it the leaf connected thereto. The arrangement is, of course, such that the arms 22 will be swung in the Proper order to cause the leaves to be successively turned.

For turning the leaves from left to right,

the push button 420 is operated to swing the arms successively from the left to the right hand position, the operation being exactly the reverse of that above described in connection with the push button 42.

Having thus described our invention we claim and desire to secure by Letters Patent:

A leaf turner comprising a casing, a series of leaf holding members extending above said casing, a co-axial series of pinions within said casing and connected with said members, respectively, an actuator within said casing mounted to rotate on an axis parallel to the axis of said pinions and havin a Series of gear segments registering witli said pmions, respectively, to engage and rotate said pinions successively as sald actuator is rotated, said actuator having a series of lugs corresponding in number and circumferential arrangement to said gear segments, a horizontally swinging lever pivoted within said casing and having at its end a pivoted spring-pressed dog to engage said lugs successively upon successive oscillations of said lever and thereby intermittently rotate said actuator, a horizontally reciprocating rod connected to said lever and extending to the exterior of the said casing, and a retracting spring for said lever.

In testimony whereof we afiix our signa tures.

EDGAR A. LEWIS. PAUL R. PINKARD.

copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washington, D. 0. 

